section.content_public {
  margin: 100px 15px 0 15px;
  -moz-transition: 0.5s;
  -o-transition: 0.5s;
  -webkit-transition: 0.5s;
  transition: 0.5s; }

  #dt-title, .dt-title{
    display:none;
  }

  #drop_zone {
    background-color: #dedede; 
    border: #0e5a28 1px dashed;
    width: 98%;
    padding : 5px 0;    
}
#drop_zone p {
    font-size: 12px;
    text-align: center;
}
#file, #file2 {
  display: none;
}